CN108568888A - A method of molding hollow ceramic product - Google Patents
A method of molding hollow ceramic product Download PDFInfo
- Publication number
- CN108568888A CN108568888A CN201810762829.3A CN201810762829A CN108568888A CN 108568888 A CN108568888 A CN 108568888A CN 201810762829 A CN201810762829 A CN 201810762829A CN 108568888 A CN108568888 A CN 108568888A
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- Prior art keywords
- photocuring
- mold
- ceramic slurry
- slurry
- light source
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/48—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
Abstract
A method of molding hollow ceramic product, including：A mold is provided, the cavity shape of the mold is identical as the external surface shape of hollow ceramic product；In the state that the mold rotates at a predetermined velocity, one layer of certain thickness photocuring ceramic slurry is coated in the inner surface of the mold；The photocuring ceramic slurry is irradiated using curing light source, makes the photocuring ceramic slurry curing.The method of the present invention is simple, easily operated, is suitable for manufacture hollow ceramic product, especially suitable for manufacturing the hollow ceramic product with material gradient.
Description
Technical field
The present invention relates to ceramic manufacturing fields, and in particular to a method of molding hollow ceramic product.
Background technology
Ceramic photocuring technology is to be blended photosensitive resin and ceramic powder, and obtaining can be under specific wavelength light source effect
It is cured the slurry of transformation, using the technology of layer separated growth formed ceramic article.The slurry system used passes through powder
With the coordination of resin component, stable dispersing morphology can be obtained, there is good mobility and curing performance.Further, since
The form-dependent character that resin has had can completely carve the form being covered by again.
Currently, conventional ceramic photocuring layer separated growth technology carries out entity using the smaller planar layer of thickness
It divides, the larger hollow in section is manufactured, Interlaminar Crack defect often occurs, and be difficult to obtain high surface accuracy.
Other techniques are for example hot-forming, gel casting forming, for the thin wall hollow part of surface shape complexity, Mold Making
Complicated, modulus difficulty, one-shaping technique is difficult to obtain the functionally gradient material (FGM) along wall thickness directional spreding in addition.
Invention content
In order to solve the problems in the existing technology, the present invention proposes a kind of method of molding hollow ceramic product,
It is particularly suitable for preparing hollow ceramic product using photocuring ceramic slurry, it is good hollow can efficiently to obtain surface quality
Ceramic.
To reach above-mentioned technical purpose, the present invention adopts the following technical scheme that：
A method of molding hollow ceramic product comprises the steps of：
A mold is provided, the cavity shape of the mold is identical as the external surface shape of hollow ceramic product；
It is certain thickness in one layer of the inner surface coating of the mold in the state that mold rotates at a predetermined velocity
Photocuring ceramic slurry；
The photocuring ceramic slurry is irradiated using curing light source, makes the photocuring ceramic slurry curing.
Preferably, the method further includes that another layer of photocuring pottery is coated on the cured photocuring ceramic slurry
Then porcelain slurry carries out photocuring, the alternately coating of photocuring ceramic slurry and photocuring, until forming predetermined number of layers
Hollow ceramic product.
Preferably, the method further includes adjusting photocuring ceramic slurry by controlling the offer amount of photocuring ceramic slurry
The thickness of material.
Preferably, the ingredient of each layer photocuring ceramic slurry is identical or different.
Preferably, the thickness of each layer photocuring ceramic slurry is identical or different.
Preferably, the mold is transparent to curing light source, and the curing light source is from the outside of the mold and/or cures light
Line entrance irradiates the photocuring ceramic slurry.
Preferably, the mold is opaque to curing light source, solidification light entrance of the curing light source from the mold
Irradiate the photocuring ceramic slurry.
Preferably, the rotary speed of the mold is 200-2000r/min.
Preferably, the rotational time of the mold is 0.5-5min.
Preferably, the method further includes：The wet base of hollow ceramic product of photocuring is taken out in die sinking, after degreasing and sintering
Obtain end article.
Compared with prior art, technical scheme of the present invention has the advantages that：
(1) method of the invention is simple, easily operated, reproducible, and production efficiency is high, can be used for preparing variously-shaped
Hollow ceramic product, and the surface quality of the hollow ceramic product prepared is high, improves the quality of hollow ceramic product；
(2) present invention is layered molding thought using along wall thickness direction, can select different ceramic materials for different layers
Material can be used for preparing the hollow ceramic product with material gradient.
Description of the drawings
Fig. 1 is the flow diagram that hollow ceramic product is molded in the embodiment of the present invention；
Fig. 2 is the schematic diagram of photocuring in one embodiment of the invention；
Fig. 3 is the schematic diagram of photocuring in another embodiment of the present invention；
Fig. 4 is the schematic diagram of the hollow ceramic product obtained in the embodiment of the present invention.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in further detail.
The present invention is using ceramic photocuring slurry excellent mobility, curability and form-dependent character, in conjunction with the skill of Layered manufacturing
Art advantage, it is proposed that a method of molding hollow ceramic product.
As shown in Figure 1, an embodiment of the present invention provides a kind of method of molding hollow ceramic product, this method specifically includes
Following steps：
(1) mold is provided, the cavity shape of the mold is identical as the external surface shape of hollow ceramic product.Hollow pottery
The shape of ceramic products can be ampuliform, hemispherical, tubulose etc., can also be the hollow with other complex surface shapes.This
In mold can be transparent or opaque to curing light source.When mold is opaque to curing light source, or need to prepare in multilayer
When empty ceramic, mold needs the entrance with solidification light, and light should be able to cover all forming areas.
(2) it in the state that the mold rotates at a predetermined velocity, is coated in the inner surface of the mold one layer certain thick
The photocuring ceramic slurry of degree.
In this step, photocuring ceramic slurry can be added in the mold, then arrives the mold surely together
On centrifuge, spin for some time, makes pottery to form certain thickness photocuring in the inner surface of the mold at a predetermined velocity
Porcelain slurry.The thickness of photocuring ceramic slurry is adjusted by controlling the offer amount of photocuring ceramic slurry.
Photocuring ceramic slurry therein is formulated by photosensitive resin and ceramic powder.Photosensitive resin generally includes photosensitive
Performed polymer, diluent, initiator etc..UV-Curable Prepolymer therein can be selected from acrylated epoxy resins, unsaturated polyester (UP),
Polyurethane etc., diluent can be selected from (methyl) crylic acid resin compound, vinylic chemical compound, vinyl ethers chemical combination
Object, epoxy compounds etc., initiator can be selected from acetophenone compounds, diimidazole class compound, compound in triazine class, oxime
Class compound etc..Ceramic powder can be selected from one or more in the powders such as aluminium oxide, zirconium oxide.
The rotary speed of centrifuge can be 200-2000r/min, can be preferably 800-1500r/min, rotational time
It can be 0.5-5min, can be preferably 1-3min.
(3) it utilizes curing light source to irradiate the photocuring ceramic slurry, makes the photocuring ceramic slurry curing.In the step
In rapid, for transparent mould, light source can be obtained from transparent mould outside or internal fully irradiation slurry after being allowed to solidification
Shape is complete, has certain thickness cured layer, as shown in Figure 2；For opaque mold, the light on mold can be passed through
Entrance is incident, and covers all forming areas.
(4) when preparing single layer hollow ceramic, photocuring ceramic slurry can mold taking-up solidification after being fully cured
Wet base, through degreasing and sintering after, obtain end article.When preparing multilayer hollow ceramic, repeat step (2) and
(3), until predetermined number of layers, as shown in Figure 3.The ingredient of each layer photocuring ceramic slurry can be identical or different, and thickness also may be used
With identical or different.In photocuring, curing light source is from the light entrance incident (such as mould openings) on mold in irradiation
Chamber.Finally, cured wet base is taken out in die sinking, after degreasing and sintering, obtains end article, as shown in figure 4, the hollow pottery obtained
Each layer thickness of ceramic products is controllable, and each layer can use not same material, and therefore, product has capability gradient.
Embodiment 1
One group of ceramics photocuring slurry that ceramic powder is alumina powder is prepared, powder volume fraction is respectively 45%,
50% and 55%.The opaque of dies cavity can be irradiated completely from bottle mouth position by a use of cavity shape being winebottle-shaped, light
Mold, surface of internal cavity product are about 790cm2.The first floor is added the photocuring slurry that 8ml powder volume fractions are 45%, mold is consolidated
It is scheduled on centrifuge, is removed after rotating speed 600r/min, 3min, curing light source irradiates pulp layer from bottle mouth position, until being fully cured；
The step is repeated, until the 10th layer.11th layer is added the photocuring slurry that 8ml powder volume fractions are 50%, mold is fixed on
It on centrifuge, is removed after rotating speed 600r/min, 3min, curing light source irradiates pulp layer from bottle mouth position, until being fully cured；It repeats
The step, until the 20th layer.21st layer, the photocuring slurry that 8ml powder volume fractions are 55% is added, mold is fixed on centrifugation
It on machine, is removed after rotating speed 600r/min, 3min, curing light source irradiates pulp layer from bottle mouth position, until being fully cured；Repeat the step
Suddenly, until the 30th layer.Cured wet base is taken out in die sinking, after degreasing and 1600 DEG C of sintering, obtain it is hollow, there is material gradient
, winebottle-shaped ceramic.
Embodiment 2
The ceramic photocuring slurry that powder volume fraction is 55% is prepared, the type of ceramic powder is respectively aluminium oxide and oxidation
Zirconium.The transparent mould of dies cavity can be irradiated completely from opening by a use of cavity shape being hemispherical, light, hemisphere
A diameter of 2cm.The first floor is added the photocuring slurry that 1.0ml powders are aluminium oxide, mold is fixed on centrifuge, rotating speed is
It is removed after 600r/min, 1min, curing light source irradiates pulp layer on the outside of transparent mould with opening respectively, until being fully cured；
2nd layer, the photocuring slurry that 0.5ml powders are zirconium oxide is added, mold is fixed on centrifuge, rotating speed 600r/min,
It is removed after 1min, curing light source irradiates pulp layer from opening respectively, until being fully cured；3rd layer, addition 0.5ml powders are oxygen
The photocuring slurry for changing aluminium, mold is fixed on centrifuge, is removed after rotating speed 600r/min, 1min, curing light source difference
Pulp layer is irradiated from opening, until being fully cured；Alternately addition 0.5ml powders are the photocuring slurry of zirconium oxide and aluminium oxide,
To the 30th layer, cured wet base is taken out in die sinking, after degreasing and 1600 DEG C of sintering, obtain it is hollow, different materials superposition, half
Spherical ceramic product.
Embodiment 3
Prepare the aluminium oxide ceramics photocuring slurry that powder volume fraction is 55%.Using a cavity shape be tubulose,
Light can irradiate the opaque mold of dies cavity, a diameter of 6cm of pipe, length 10cm completely from opening.The first floor adds
Enter the photocuring slurry that 2.0ml powders are aluminium oxide, mold is fixed on centrifuge, is taken after rotating speed 600r/min, 1min
Under, curing light source irradiates pulp layer from mould openings, until being fully cured；The process is repeated, until the 50th layer, solidification is taken out in die sinking
Wet base, through degreasing and 1600 DEG C sintering after, obtain hollow ceramic tube.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical solution and advantageous effect
Describe in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to restrict the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the protection of the present invention
Within the scope of.
Claims (10)
1. a kind of method of molding hollow ceramic product, which is characterized in that comprise the steps of：
A mold is provided, the cavity shape of the mold is identical as the external surface shape of hollow ceramic product；
In the state that the mold rotates at a predetermined velocity, it is solid to be coated with one layer of certain thickness light in the inner surface of the mold
Change ceramic slurry；
The photocuring ceramic slurry is irradiated using curing light source, makes the photocuring ceramic slurry curing.
2. the method for claim 1, wherein the method further includes on the cured photocuring ceramic slurry
It is coated with another layer of photocuring ceramic slurry, then carries out photocuring, the alternately coating of photocuring ceramic slurry and photocuring,
Hollow ceramic product until forming predetermined number of layers.
3. the method for claim 1, wherein the method further includes the offer amount by controlling photocuring ceramic slurry
To adjust the thickness of photocuring ceramic slurry.
4. method as claimed in claim 2, wherein the ingredient of each layer photocuring ceramic slurry is identical or different.
5. method as claimed in claim 2, wherein the thickness of each layer photocuring ceramic slurry is identical or different.
6. the method for claim 1, wherein the mold is transparent to curing light source, the curing light source is from the mould
Tool is external and/or solidification light entrance irradiates the photocuring ceramic slurry.
7. the method for claim 1, wherein the mold is opaque to curing light source, the curing light source is from described
The solidification light entrance of mold irradiates the photocuring ceramic slurry.
8. the method for claim 1, wherein the rotary speed of the mold is 200-2000r/min.
9. the method for claim 1, wherein the rotational time of the mold is 0.5-5min.
10. the method for claim 1, wherein the method further includes：The hollow ceramic product of photocuring is taken out in die sinking
Wet base obtains end article after degreasing and sintering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810762829.3A CN108568888A (en) | 2018-07-12 | 2018-07-12 | A method of molding hollow ceramic product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810762829.3A CN108568888A (en) | 2018-07-12 | 2018-07-12 | A method of molding hollow ceramic product |
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| Publication Number | Publication Date |
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| CN108568888A true CN108568888A (en) | 2018-09-25 |
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| CN201810762829.3A Pending CN108568888A (en) | 2018-07-12 | 2018-07-12 | A method of molding hollow ceramic product |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103419374A (en) * | 2013-08-05 | 2013-12-04 | 北京化工大学 | Photo-curing rotational molding device and method |
| US20140117575A1 (en) * | 2012-10-29 | 2014-05-01 | Makerbot Industries, Llc | Three-dimensional printer with force detection |
| CN102958660B (en) * | 2010-07-16 | 2015-06-10 | 株式会社平和化学工业所 | Method and device forming hollow molded product |
| CN105330268A (en) * | 2015-12-03 | 2016-02-17 | 广东工业大学 | Manufacturing method of laminated ceramics |
| CN106217869A (en) * | 2016-07-20 | 2016-12-14 | 华南理工大学 | The photocuring preparation facilities of a kind of functionally gradient material (FGM) and photocuring preparation method |
-
2018
- 2018-07-12 CN CN201810762829.3A patent/CN108568888A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102958660B (en) * | 2010-07-16 | 2015-06-10 | 株式会社平和化学工业所 | Method and device forming hollow molded product |
| US20140117575A1 (en) * | 2012-10-29 | 2014-05-01 | Makerbot Industries, Llc | Three-dimensional printer with force detection |
| CN103419374A (en) * | 2013-08-05 | 2013-12-04 | 北京化工大学 | Photo-curing rotational molding device and method |
| CN105330268A (en) * | 2015-12-03 | 2016-02-17 | 广东工业大学 | Manufacturing method of laminated ceramics |
| CN106217869A (en) * | 2016-07-20 | 2016-12-14 | 华南理工大学 | The photocuring preparation facilities of a kind of functionally gradient material (FGM) and photocuring preparation method |
Non-Patent Citations (1)
| Title |
|---|
| 汤礼广: "《材料成形技术基础》", 31 August 2016, 合肥工业大学出版社 * |
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Application publication date: 20180925 |